MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25oC ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
DL4728A
THRU
DL-41
Dimensions in millimeters
RECTIFIER SPECIALISTS
R
DC COMPONENTS CO., LTD.
TECHNICAL SPECIFICATIONS
OF
GLASS SILICON ZENER DIODES
FEATURES
* Voltage Range:3.3V to 39V
MECHANICAL DATA
* Case: Glass sealed case
* Mounting position: Any
* Weight: 0.35 gram
* Double slug type construction
DL4754A
2.4+0.1
5.0±0.2
0.4 CATHODE MARK
* Terminals:Solder plated, solderable per
MIL-STD-750, Method 2026
* Polarity: Color band denotes cathode end
SYMBOL VALUE UNITS
Zener Current see Table "Characterisitics"
Power Dissipation at Tamb=25oC Ptot 1(1) W
Junction Temperature Tj 175
oC
Storage Temperature Range Tstg -55 to + 200
oC
K/mW
Thermal Resistance RthA - Typ.
Junction to Ambient Air - Min.
170(1) Max.
Volts
Forward Voltage VF - Typ.
at IF=200mA - Min.
1.2 Max.
1)Valid Provided that leads are kept at ambient temperature at a distance of 10 mm from case.
NOTE: Suffix "A" indicates Zener Voltage Tolerance ± 5%
300
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Breakdown characteristics DL47-SERIES
mA
240
200
160
120
80
0
5V 10V 15V 20V 25V 30V
IZ
VZ
27
24
22
20
15
12
11
9V1
7V5
6V8
6V2
5V6
5V1
4V7
4V3
3V9
3V3
R
DC COMPONENTS CO., LTD.
RATING AND CHARACTERISTIC CURVES (DL4728A THRU DL4754A)
DL4728A 3.3 76 10 400 1.0 100 1.0 1380 276
DL4729A 3.6 69 10 400 1.0 100 1.0 1260 252
DL4730A 3.9 64 9.0 400 1.0 50 1.0 1170 234
DL4731A 4.3 58 9.0 400 1.0 10 1.0 1085 217
DL4732A 4.7 53 8.0 500 1.0 10 1.0 965 193
DL4733A 5.1 49 7.0 550 1.0 10 1.0 890 178
DL4734A 5.6 45 5.0 600 1.0 10 2.0 810 162
DL4735A 6.2 41 2.0 700 1.0 10 3.0 730 146
DL4736A 6.8 37 3.5 700 1.0 10 4.0 660 133
DL4737A 7.5 34 4.0 700 0.5 10 5.0 605 121
DL4738A 8.2 31 4.5 700 0.5 10 6.0 550 110
DL4739A 9.1 28 5.0 700 0.5 10 7.0 500 100
DL4740A 10 25 7.0 700 0.25 10 7.6 454 91
DL4741A 11 23 8.0 700 0.25 5.0 8.4 414 83
DL4742A 12 21 9.0 700 0.25 5.0 9.1 380 76
DL4743A 13 19 10 700 0.25 5.0 9.9 344 69
DL4744A 15 17 14 700 0.25 5.0 11.4 304 61
DL4745A 16 15.5 16 700 0.25 5.0 12.2 285 57
DL4746A 18 14 20 750 0.25 5.0 13.7 250 50
DL4747A 20 12.5 22 750 0.25 5.0 15.2 225 45
DL4748A 22 11.5 23 750 0.25 5.0 16.7 205 41
DL4749A 24 10.5 25 750 0.25 5.0 18.2 190 38
DL4750A 27 9.5 35 750 0.25 5.0 20.6 170 34
DL4751A 30 8.5 40 1000 0.25 5.0 22.8 150 30
DL4752A 33 7.5 45 1000 0.25 5.0 25.1 135 27
DL4753A 36 7.0 50 1000 0.25 5.0 27.4 125 25
DL4754A 39 6.5 60 1000 0.25 5.0 29.7 115 23
Nominal
Zener
Voltage
VZ@IZT
Volts
Test
Current
IZT
mA
Maximum Zener
Impedance
ZZT@IZT ZZT@IZK
Ohms Ohms
IZK
mA
Maximum Reverse
Leakage Current
IR @VR
uA Volts
Maximum
Regulator
Current
IZM
mA
1.0
0.8
0.6
0.4
0.2
00 100 200o C
Valid provided that leads are kept at ambient
temperature at a distance of 10mm from case
Ptot
Tamb
Admissible power dissipation
versus ambient temperature
Max. Surge
Current
IR
mA
W
301
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